EP0065799A2 - Vorrichtung bestehend aus einer Kunststoffolie zum Bedecken von Betonwänden - Google Patents

Vorrichtung bestehend aus einer Kunststoffolie zum Bedecken von Betonwänden Download PDF

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Publication number
EP0065799A2
EP0065799A2 EP82200556A EP82200556A EP0065799A2 EP 0065799 A2 EP0065799 A2 EP 0065799A2 EP 82200556 A EP82200556 A EP 82200556A EP 82200556 A EP82200556 A EP 82200556A EP 0065799 A2 EP0065799 A2 EP 0065799A2
Authority
EP
European Patent Office
Prior art keywords
sheet
elements
wall
centering elements
sheets
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
EP82200556A
Other languages
English (en)
French (fr)
Other versions
EP0065799B1 (de
EP0065799A3 (en
Inventor
Petrus Marinus Acda
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Renolit Nederland BV
Original Assignee
Polva-Nederland BV
Polva Nederland BV
Draka Polva BV
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Polva-Nederland BV, Polva Nederland BV, Draka Polva BV filed Critical Polva-Nederland BV
Priority to AT82200556T priority Critical patent/ATE33066T1/de
Publication of EP0065799A2 publication Critical patent/EP0065799A2/de
Publication of EP0065799A3 publication Critical patent/EP0065799A3/fr
Application granted granted Critical
Publication of EP0065799B1 publication Critical patent/EP0065799B1/de
Expired legal-status Critical Current

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Classifications

    • E—FIXED CONSTRUCTIONS
    • E21—EARTH OR ROCK DRILLING; MINING
    • E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
    • E21D11/00—Lining tunnels, galleries or other underground cavities, e.g. large underground chambers; Linings therefor; Making such linings in situ, e.g. by assembling
    • E21D11/04—Lining with building materials
    • E21D11/10—Lining with building materials with concrete cast in situ; Shuttering also lost shutterings, e.g. made of blocks, of metal plates or other equipment adapted therefor
    • E—FIXED CONSTRUCTIONS
    • E03—WATER SUPPLY; SEWERAGE
    • E03F—SEWERS; CESSPOOLS
    • E03F3/00—Sewer pipe-line systems
    • E03F3/04—Pipes or fittings specially adapted to sewers
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
    • F16L58/00—Protection of pipes or pipe fittings against corrosion or incrustation
    • F16L58/02—Protection of pipes or pipe fittings against corrosion or incrustation by means of internal or external coatings
    • F16L58/04—Coatings characterised by the materials used
    • F16L58/10—Coatings characterised by the materials used by rubber or plastics
    • F16L58/1009—Coatings characterised by the materials used by rubber or plastics the coating being placed inside the pipe
    • F16L58/1045—Coatings characterised by the materials used by rubber or plastics the coating being placed inside the pipe the coating being an extruded or a fused layer

Definitions

  • the present invention relates to a device for covering concrete walls and more particularly walls of already constructed works, comprising a sheet of plastic material having hooking elements on its face opposite the wall.
  • a known technique for protecting such walls consists in coating them with a sheet of plastic material of an appropriate nature.
  • the sheet must be bent to the internal profile of the pipe and be fixed by a concrete mortar introduced between the sheet and the wall of the pipe, so as to anchor it by means of its T-ribs. to the wall, while the sheet is held in place by a temporary internal formwork until the mortar has set.
  • the sheet must be able to be easily bent, it should be made of a relatively flexible plastic material and therefore, the T-ribs with which it is provided are also flexible which affects good anchoring of leaf.
  • the T-ribs fitted to the sheet generally have identical heights, which can lead to certain difficulties in centering the covering when the internal wall to be protected is unevenly corroded and therefore has an irregular surface.
  • the present invention therefore aims to provide a device for covering concrete walls comprising a plastic sheet comprising fastening elements on its face facing the wall which does not have the drawbacks of known materials and which turns out particularly advantageous for protecting or restoring concrete walls of already constructed works.
  • the device comprises a sheet of plastic material comprising hooking elements on its face opposite the wall and centering elements of general T shape, the sole of which is anchored to the wall to be covered and whose l soul is equipped at its end with a connecting element by embedding cooperating with the attachment elements of the sheet.
  • the plastic sheets can be made of any material chosen according to its resistance to the environment.
  • a semi-rigid or flexible plastic material is chosen so as to obtain easily bendable sheets.
  • the thickness of these sheets varies, in general it is from one to a few millimeters.
  • the fastening elements provided on one face of the sheets can be of various conformations.
  • these can be punctual and consist of protuberances, for example in the form of mushrooms or hooks, distributed in staggered rows or in grid pattern on the surface of one face of the sheet.
  • these hooking elements are in the form of ribs or parallel grooves of general section in the shape of a T or wedge.
  • These ribs or grooves can be an integral part of the sheet and can be produced, for example, directly during the production of the sheets by extrusion.
  • these ribs or grooves can be formed by plastic profiles attached to flat sheets, for example by gluing or welding.
  • the profiles constituting the ribs or grooves are produced by extrusion from a rigid plastic material.
  • the height of the ribs or grooves can be relatively small, and, in general, the ratio between this height and the thickness of the sheets is between 1/2 and 3.
  • the ribs or grooves are identical as regards their shape and their dimensions.
  • the centering elements of the devices according to the invention are preferably profiles made of a rigid material. They can be produced from plastics by injection molding, or preferably by extrusion using an appropriately shaped die.
  • the recessed connecting element provided on the end of the core of the centering elements can be of various conformations chosen so that it can cooperate with the hooking elements provided on the sheets and thus ensure the fixing of the latter.
  • the embedding connecting element can be in the form of a groove whose profile corresponds to that of the section of the outgrowths and whose external edges reported can be temporarily removed by pressure to allow the embedding of the growths in the groove.
  • the sheets are fitted with hooking ribs of general T-section and, in this case, the groove provided on the end of the core of the centering element has a profile corresponding to that of the rib.
  • the embedding connecting element is in the form of a rib whose profile corresponds to that of the grooves.
  • the connecting element or the hooking element preferably comprises locking edges ensuring the definitive embedding of these elements when they are forcibly inserted into each other.
  • the centering elements can have any length but, for their placement to be easier, it is preferred that this length is between 5 and 50 cm.
  • the height of the core can also vary within wide limits, for example between 3 and 25 cm and more generally between 3 and 10 cm. It is possible to use centering elements with different web heights for fixing the same sheet, which allows the internal covering to be correctly centered when it is put in place, even when the wall to be protected has inequalities due for example to local corrosions.
  • the centering elements of the device according to the invention can therefore exercise two functions: ensuring the anchoring of the sheets to the concrete wall thanks to their sole and their connecting element and ensuring the correct centering of the sheet during its installation by varying the height of their core.
  • the sheets of plastic material can be produced from various plastics materials in widespread use such as polymers and copolymers of olefins possibly modified (chlorinated polyethylenes for example) and elastomers of thermoplastic character (butadiene-styrene copolymers and butadiene-acrylonitrile for example).
  • the centering elements can also be made of materials, preferably rigid, of very diverse natures such as metals such as aluminum.
  • the centering elements are also made from widely used plastics such as polyolefins, polystyrene, and acrylic resins. However, it is preferred to produce both the sheets and the centering elements from resins derived from vinyl chloride.
  • the sheets When mounting the device according to the invention, the sheets are equipped with centering elements, chosen with the appropriate heights of cores and distributed with a frequency which can be predetermined at will, these elements being embedded in the intended hooking elements on the leaves.
  • the sheets are then bent and held in place against the wall of the pipe by a temporary internal formwork, the flanges of the centering elements being in direct contact with the concrete wall.
  • the anchoring is then obtained with the intervention of a concrete mortar poured between the sheets and the internal wall and, after setting of this mortar, the formwork can be removed. Sealing between neighboring sheets can be ensured by any means known such as the use of seals or sealing cords or by covering with gluing and welding.
  • the covering of the concrete wall 1 is ensured by a plastic sheet 2 comprising hooking elements constituted by ribs of T-shaped section 3 coming from extrusion and by elements centering 4 of general T shape comprising a sole 5 and a core 6 the end of which is equipped with a connecting element 7 consisting of a T-shaped groove corresponding to the shape of the rib 3 of the sheet 2 and in which this rib can be fitted by pressure and held by the locking edges 8.
  • the device thus formed is held in place and anchored to the wall 1 by a concrete mortar 9 poured between the sheet 2 and the concrete wall 1, this mortar ensuring the definite anchoring of the centering elements 4 in particular by means of their sole 5.
  • the device illustrated in FIG. 2 is similar to that of FIG. 1 except that the fastening elements of the sheets 2 are formed by grooves 10 attached by welding or gluing to sheet 2 and that the ends of the cores 6 of the centering elements 4 are equipped with a connecting element 7 constituted by a rib of T-section corresponding to the shape of the groove 10 of the sheet 2 and in which this rib can be embedded by pressure and held by the locking edges 8.
  • Figure 3 illustrates a tubular section of a device suitable for mounting in a concrete tubular pipe, not shown, and shows that the centering elements 4 can be placed in places and with any frequency on the elements of attachment 3 of the plastic sheets 2, in particular in order to ensure perfect centering of the covering when it is placed in the pipeline.
  • FIG. 4 illustrates the mounting in place and the anchoring of a device as illustrated in FIG. 1 in a concrete pipe 1 to be restored.
  • the curved cover sheet 2 is held in place and in shape by a temporary internal formwork 11.
  • the device is centered by means of the centering elements 4 embedded in the elements of attachment 3 of the sheet 2.
  • the centering element 4 in the case where the wall of the pipe has significant local corrosion 12, it is possible to maintain an excellent centering of the sheet by choosing a centering element 4 of appropriate core length.

Landscapes

  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • General Engineering & Computer Science (AREA)
  • Mining & Mineral Resources (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Structural Engineering (AREA)
  • Civil Engineering (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Public Health (AREA)
  • Hydrology & Water Resources (AREA)
  • Health & Medical Sciences (AREA)
  • Mechanical Engineering (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Water Supply & Treatment (AREA)
  • Geology (AREA)
  • Forms Removed On Construction Sites Or Auxiliary Members Thereof (AREA)
  • Lining And Supports For Tunnels (AREA)
  • Laminated Bodies (AREA)
  • Building Environments (AREA)
  • Dowels (AREA)
  • Finishing Walls (AREA)
  • Sewage (AREA)
EP82200556A 1981-05-18 1982-05-07 Vorrichtung bestehend aus einer Kunststoffolie zum Bedecken von Betonwänden Expired EP0065799B1 (de)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT82200556T ATE33066T1 (de) 1981-05-18 1982-05-07 Vorrichtung bestehend aus einer kunststoffolie zum bedecken von betonwaenden.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR8109998A FR2505976B1 (fr) 1981-05-18 1981-05-18 Dispositif pour le recouvrement de parois en beton comprenant une feuille de matiere plastique
FR8109998 1981-05-18

Publications (3)

Publication Number Publication Date
EP0065799A2 true EP0065799A2 (de) 1982-12-01
EP0065799A3 EP0065799A3 (en) 1985-05-15
EP0065799B1 EP0065799B1 (de) 1988-03-16

Family

ID=9258662

Family Applications (1)

Application Number Title Priority Date Filing Date
EP82200556A Expired EP0065799B1 (de) 1981-05-18 1982-05-07 Vorrichtung bestehend aus einer Kunststoffolie zum Bedecken von Betonwänden

Country Status (5)

Country Link
EP (1) EP0065799B1 (de)
AT (1) ATE33066T1 (de)
DE (1) DE3278250D1 (de)
DK (1) DK155291C (de)
FR (1) FR2505976B1 (de)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS60219400A (ja) * 1984-04-17 1985-11-02 技術資源開発株式会社 トンネル類のライニング方法及び装置

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1876205A (en) * 1930-12-31 1932-09-06 Nat Gunite Contracting Co Monolithic construction
BE699661A (de) * 1966-06-09 1967-11-16
FR2224697A1 (en) * 1973-04-05 1974-10-31 Friedrichsfeld Gmbh Concrete pipe with thermoplastic inner sheath - consisting of extruded plates with outwardly extending anchoring pins
GB1413397A (en) * 1973-07-06 1975-11-12 Lilja L H Arrangement in a pipe for enclosing insulation
FR2421325A1 (fr) * 1978-03-31 1979-10-26 Marks Helmuth Raccord a manchon interieur etanche pour abouts de tubes dans les canalisations

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2735449A (en) * 1956-02-21 Pipe spacing device
US2816323A (en) * 1953-04-22 1957-12-17 Charles G Munger Method of making plastic lined concrete pipe and joints therein
CH331930A (de) * 1954-02-11 1958-08-15 Handel En Ind Indonesian Plann Verfahren zur Herstellung eines armierten Betonrohres für hohe Drücke und nach dem Verfahren hergestelltes, armiertes Betonrohr

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1876205A (en) * 1930-12-31 1932-09-06 Nat Gunite Contracting Co Monolithic construction
BE699661A (de) * 1966-06-09 1967-11-16
FR2224697A1 (en) * 1973-04-05 1974-10-31 Friedrichsfeld Gmbh Concrete pipe with thermoplastic inner sheath - consisting of extruded plates with outwardly extending anchoring pins
GB1413397A (en) * 1973-07-06 1975-11-12 Lilja L H Arrangement in a pipe for enclosing insulation
FR2421325A1 (fr) * 1978-03-31 1979-10-26 Marks Helmuth Raccord a manchon interieur etanche pour abouts de tubes dans les canalisations

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS60219400A (ja) * 1984-04-17 1985-11-02 技術資源開発株式会社 トンネル類のライニング方法及び装置

Also Published As

Publication number Publication date
FR2505976B1 (fr) 1986-05-02
ATE33066T1 (de) 1988-04-15
FR2505976A1 (fr) 1982-11-19
DK155291B (da) 1989-03-20
DK221382A (da) 1982-11-19
DK155291C (da) 1989-07-31
EP0065799B1 (de) 1988-03-16
DE3278250D1 (en) 1988-04-21
EP0065799A3 (en) 1985-05-15

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